PVI Industries FIREPOWER B40 Manuale Utente

 

(Refer to Figure 22-1 to identify burner parts) 

 

1.  Remove the enclosure panel cover on the water 

heater or boiler to expose the control circuit. The 
wiring diagram, located on the backside of the 
cover, will show the controls used in our circuitry. 

 

2.  Visually check that all components are intact and 

no damage has occurred during transit. 

 

3.  Check all connections in control cabinet. A loose 

connection could cause intermittent shutdowns. 

 

4.  Check oil supply lines to insure proper practices 

have been followed and installation complies with 
local codes. Use only a two-pipe system. Check 
for adequate burner intake air supply. 

 
NOTE:  Do not tamper with or readjust program 
dipswitch settings. This will cause the control 
to become  inoperable. Damage resulting from 
tampering will be excluded from coverage 
under the warranty of this unit. 
 

5.  Remove the flame safeguard control from its 

base. Check the connections in control mounting 
base; loose connections can cause nuisance 
shutdowns. When applicable, check the time card 
or programmer, for good connection. 

 

6.  With electrodes exposed, check them for the 

proper settings as in Figure 22-4 & 7, pages 7 & 8. 
Check for any hairline cracks in the insulators. 
Should replacement of burner electrodes be 
required, certain procedures must be followed. In 
all cases, removal of electrodes is accomplished 
by loosening the electrode mounting clamps. 
Draw electrodes out of the nozzle assembly 
through the holes in the pressure plate. 

 

7.  Open manual oil valve(s). Make certain check 

valves are positioned for the correct oil flow. There 
should not be a manual shut-off valve in the return 
line from the pump to the tank. 

 

8.  Pull the nozzle assembly to check the ignition 

electrodes. See Figure 22-3 & 6, pages 7 & 8. 

 

9.  Inspect the electrodes for cracked ceramic or 

loose retaining studs that hold the wire within the 
ceramic. Select the proper pressure plate hole to 
place each electrode and insert the electrode 
through the hole, retaining stud end first. 
 

 
 

 
10. Tighten the electrode mounting clamp slightly until 

electrode ceramics are seated firmly and 
completely in the mounting bracket without gaps 
between ceramics and mounting bracket at the 
bearing faces. 

 

11. Measure and set electrodes according to Figure 

22-4 & 7, pages 7 & 8. After gaps and setting are 
complete, fully tighten electrode mounting clamp. 
Do not overtighten or insulation may crack. 

 

12. Replace nozzle assembly; be sure to connect the 

spark rod wires before installing nozzle assembly 
fully into blast tube. Check connections on the 
ends of the flame and spark rod wires for good 
contact. Look for properly stripped wire ends. Be 
sure connectors are firmly attached to the ignition 
rod ends. Insulating boots can give a false feeling 
of proper seating. 

ELECTRODES. Be careful not to bump 
electrodes. Check fan wheel for free rotation. 

 

13. Connect a test meter to the control for reading the 

flame response signal. 

 
NOTE:  Some controls read the flame signal in 
micro amps and some in volts DC. The MC120 
series control has  two terminals marked for 
reading volts DC. 
 

14. Be sure tank is filled with water. Once the burner 

is reassembled, a gauge to read pressure, 
preferably a 300 psi gauge, will be needed to read 
oil pressures. Connect gauge to the pressure side 
of the oil pump. Connect vacuum gauge to supply 
side of oil pump (15”HG maximum allowed). 

 

15. Single stage oil burners. Before turning the unit 

on, make sure all valves in the oil supply and 
return lines are on. Check the air damper setting 
against the setup tag attached to the burner. 
Turn the unit on using the rocker switch on the 
side of the control cabinet. If the operating 
control switches are closed, the burner blower 
should come on and prepurge begins. 

 
If nothing happens, check the control to be sure it 
is not in the tripped position and reset it by 
pushing the flame safeguard reset button. Burner 
should prepurge for no more than thirty seconds.